An occasional substitute to CPAP therapy is an oral appliance. An oral appliance is comparable in figure, form, and texture to an orthodontic retainer or a mouth guard. Oral appliances position the tongue and jaw forward to prop open the airway, ensuring the patient’s air passage ways maintain open and prevent a hypopnea from occurring. The occurrence of this is because the soft tissue at the back of the throat will no longer be required to support different regions of the mouth and air can flow through without blockage. The FDA has approved oral appliances and they are the most recent advancement in the sleep apnea therapy market, many patients finding them most suitable for traveling. Furthermore, they are much more compact and manageable than a CPAP mask which helps to ease the transition for those new to the sleep apnea market. Lastly, they are dramatically less expensive and have an extended life span, thus the patient is not required to replace the device every several months. Only one product is required to be purchased, and no exterior continuous expenses of traditional therapy. Additionally, patients without critical cases of Sleep Apnea can relax, knowing that they do require a CPAP machine to upkeep and preserve. If replacement becomes necessary, the cost is much less than a new machine and soap and water are the only items needed for cleansing.